spraay_notify_sms

Send an SMS notification for payment alerts (simulated — Twilio integration coming). Requires E.164 phone format. Costs $0.005 USDC.

SERVERSpraay X402 Mcp SOURCEspraay-x402-mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-plagtech-spraay-x402-mcp/spraay-notify-sms.md

WHAT IT DOES

What spraay_notify_sms does on Spraay X402 Mcp

AI agents use spraay_notify_sms to commit financial operations through Spraay X402 Mcp, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why spraay_notify_sms is rated Critical

Each call to this tool incurs a real USDC charge ($0.005), making it a Financial action by the severity hierarchy. Although the amount is small, an AI agent could repeatedly invoke this tool to drain funds or spam SMS targets, raising the blast radius to medium. The external notification side-effect alone would be Execute, but the financial cost elevates the category to Financial.

From the tool's definition Costs $0.005 USDC — the tool commits a financial obligation (micropayment) each time it is invoked, in addition to triggering an external SMS operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs spraay_notify_sms safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Spraay X402 Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For spraay_notify_sms, this is the rule to start with:

spraay_notify_sms Approval-gated

Any call to spraay_notify_sms is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "spraay_notify_sms": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Spraay X402 Mcp, apply this rule, and every spraay_notify_sms call is checked against it from then on.

FAQ

Questions about spraay_notify_sms

What does the spraay_notify_sms tool do? +

Send an SMS notification for payment alerts (simulated — Twilio integration coming). Requires E.164 phone format. Costs $0.005 USDC. It is categorised as a Financial tool in the Spraay X402 Mcp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on spraay_notify_sms? +

Register the Spraay X402 MCP server in PolicyLayer and add a rule for spraay_notify_sms: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Spraay X402 Mcp. Nothing to install.

What risk level is spraay_notify_sms? +

spraay_notify_sms is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit spraay_notify_sms? +

Yes. Add a rate_limit block to the spraay_notify_sms rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block spraay_notify_sms completely? +

Set action: deny in the PolicyLayer policy for spraay_notify_sms. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides spraay_notify_sms? +

spraay_notify_sms is provided by the Spraay X402 MCP server (spraay-x402-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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